Advanced Instruments Osmometer 3250 Service Manual

4
Chapter 5 Troubleshooting ...................................................................30
Introduction .............................................................................................................................................30
Freeze “Buzz” Amplitude
...................................................................................................................30
Stir Driver Noise (Serial Suffix A - C only)
................................................................................... 31
Installation Option A ......................................................................................................................... 32
Installation Option B .........................................................................................................................33
Head Sensor Adjustment .................................................................................................................... 33
Head Up/Down Test
............................................................................................................................. 34
Power On Diagnostics
......................................................................................................................... 35
A/D Tests ............................................................................................................................................... 35
Sample Bin Setting ............................................................................................................................... 36
Block Bin Setting ...................................................................................................................................37
Stir Amplitude
..........................................................................................................................................37
Display/Printer Test
............................................................................................................................... 38
Beeper Test .............................................................................................................................................. 38
Keypad Test .............................................................................................................................................. 38
Barcode Test ............................................................................................................................................ 39
Reset Serial Number ............................................................................................................................. 39
Instrument Software Updates ........................................................................................................... 39
Performing FLASH firmware update .............................................................................................40
Method without opening cover ................................................................................................... 40
Method with cover removed ......................................................................................................... 40
Option Switch Settings ..................................................................................................................... 41
Troubleshooting Table ......................................................................................................................... 42
Chapter 6 Replacement Instructions ..................................................50
Mandrel Replacement 3LH500 ........................................................................................................50
Clapper Replacement 3C2241R ......................................................................................................... 51
Control Board Set Replacement 325605R/425605R ............................................................ 52
Application Board (Only) Replacement PCB605R .................................................................. 53
Processor Board (Only) Replacement325621R/425621R ....................................................... 54
Cooling Assembly Replacement 3D3300R/4D3300R ........................................................... 56
Cooling Fan Replacement 4D3360 ................................................................................................ 58
Display Board Replacement 74051R/702041R ..........................................................................60
Fuse Replacement 70011/70022 ...................................................................................................... 61
Driver Board Replacement PCB523R ............................................................................................ 63
Head Up Relay or Head Down Relay Replacement 3D3109 ................................................ 65
Heat Transfer Fluid Pump Assembly Replacement 4D3690 ............................................... 67
Heat Transfer Fluid Pump Assembly Replacement 4D390 .................................................. 68
Fluid Filter/One-way Check Valve Replacement (4D3710R/4D3705R or 99133R)
...... 71
Keypad Replacement 325511R
...........................................................................................................73
Load Resistor Replacement Instruction ........................................................................................75
Motor Assembly Replacement 4D3350R/325304R .................................................................77
NVRAM Battery Replacement 71027R ........................................................................................... 81
Power Supply Assembly Replacement 4D3950/325950R
................................................... 83
Printer Assembly Replacement 325400R
................................................................................... 86
Printer Assembly Replacement 325420R .................................................................................... 88
325404PM Replacing the Printer Mechanism ............................................................................. 91

Advanced Instruments Osmometer 3250 Specifications

General

Brand	Advanced Instruments
Model	Osmometer 3250
Category	Measuring Instruments
Language	English